Finding the Third Proportional to 199,246 and 429,978

Step by Step Solution

1. Step 1: Write the proportion equation
   199,246 : 429,978 = 429,978 : x
2. Step 2: Convert to fraction form
   199,246/429,978 = 429,978/x
3. Step 3: Cross multiply
   199,246x = 429,978 × 429,978
4. Step 4: Simplify right side
   199,246x = 184,881,080,484
5. Step 5: Solve for x
   x = 184,881,080,484/199,246
6. Step 6: Final answer
   x = 927,903.60